48V 100Ah LiFePO4 Battery 4 Pack review

Have you been looking for a dependable 48V battery pack that can power your golf cart, RV, or off-grid system without constant upkeep?

Quick Verdict

You’re getting a rugged, long-lasting 48V solution when you pick the 48V 100Ah LiFePO4 Lithium Battery,8000+ Deep Cycle Golf Cart Battery 48V, 100A BMS 5120W, 4 Pack 12V 100Ah Group 24 in Series to 48V 100Ah Lithium Batteries for RV,Off-Grid Solar Home. It’s designed around LiFePO4 chemistry and a 100A BMS for safe, high-current use and very long cycle life compared with traditional lead-acid options.

Product Overview

You’ll find this set is built from four 12V 100Ah LiFePO4 modules intended to be combined into a 48V 100Ah system for higher-voltage applications. The pack targets marine trolling motors, golf carts, RVs, solar storage, and any setup that benefits from a 48V battery bank with robust protection and long service life.

Product Identity and Dimensions

You should note the physical footprint and intended form factor so it fits your application and mounts correctly. Each battery measures 10.12 x 6.42 x 7.95 inches, which is compact for a Group 24 form factor LiFePO4 cell.

Key Specifications

You’ll want the key numbers at a glance when planning wiring, chargers, and inverters. Below is a compact breakdown of the essential specifications you’ll rely on.

What’s Included and Accessory Notes

You’ll typically receive four 12V 100Ah LiFePO4 batteries if you order the 4-pack configuration, and they’re intended to be wired together to build a 48V system. Accessories such as chargers, interconnect cables, balance leads, or fuses are not always included; plan to get a matched charger (12V 14.6V profile) and any required wiring or bus bars separately.

Recommended Accessories

You’ll want a proper charger and potentially a balancer or battery management accessory so the pack remains healthy and balanced over time. Consider a 12V (14.6V) 10A or 20A charger for regular maintenance and a DC-rated fuse or circuit breaker sized appropriately for your maximum continuous current.

Performance and Real-World Use

You’ll notice responsive power delivery with a continuous 100A discharge rating, and the 200A short-term surge capability helps with high inrush loads like motors. For many mobile and off-grid setups, that level of performance is more than enough for running trolling motors, mid-sized inverters, and typical RV loads.

Energy Capacity and Runtime

You’ll want to calculate runtime based on the 5120Wh energy figure for the 4S pack (51.2V × 100Ah). That energy number is helpful to estimate how long lights, fridges, water pumps, and electronics will run between charges. For example, a 500W inverter load would run for roughly 10 hours at ideal conversion efficiency and without considering BMS cutoffs or inverter inefficiencies.

Charge and Discharge Behavior

You’ll be pleased that the recommended charging voltage of 14.6V per 12V module is standard for LiFePO4 chemistry and helps the battery achieve full capacity quickly. Charging currents below 50A are recommended, and for longevity you’ll follow the maker’s suggestion to use smaller (10A or 20A) chargers for balancing multiple modules before final series assembly.

Battery Management System (BMS) and Safety

You’ll get comprehensive protection with the upgraded 100A BMS that guards against overcharge, over-discharge, over-current, overheating, and short circuits. There’s also a low-temperature cut-off that prevents charging below safe temperatures, which protects the battery chemistry and its lifespan.

Low-Temperature Cut-off and Operating Ranges

You’ll need to respect the ambient limits: charging is safe from 0°C to 45°C and discharging is allowed from -20°C up to 60°C. The low-temperature cut-off prevents charging at sub-zero temps to avoid lithium plating or damage, which is especially important if you operate in cold climates.

Certifications and Cell Quality

You’ll appreciate that the cells are covered by a UL1973 testing certificate reference, and the pack claims Grade-A cells. That indicates the cells were tested under standardized safety and performance protocols, which adds a layer of trust to the purchase.

Cycle Life and Longevity

You’ll find the LiFePO4 chemistry here excels in cycle life compared with most lithium chemistries and dramatically outperforms lead-acid. The seller claims up to 4000 cycles at 100% depth of discharge and up to 15000 cycles at 60% DoD — figures that translate into many years of useful service if you manage charge/discharge reasonably.

Realistic Expectations for Lifespan

You’ll realistically derive several years of daily use — often 7–10 years or more depending on depth of discharge, temperature, and the quality of your charging system. The vendor notes a suggested storage practice: if the batteries are not used continually, charge them every 3–5 months to preserve health.

Charging Strategy and Balancing

You’ll want to follow the recommended charging profile for LiFePO4: bulk charge to the recommended voltage (14.6V per 12V module), then float or balance as needed. Using smaller dedicated chargers and spending a short balancing period with the modules in parallel before final assembly helps equalize voltages.

Fast Charging and Recommended Chargers

You’ll see that the product supports a fast-charging approach that can be practical when you need quicker turnaround. The advice is to use a 12V (14.6V) 10A or 20A charger to fully charge each module and then place them in parallel for 1–2 hours to balance voltages before wiring them in series into a 48V pack. If you use a larger charger, keep charging current below 50A to avoid overstressing the cells.

Configuration Flexibility

You’ll be able to arrange these modules in parallel and series combinations to match your system requirements. The recommended maximum is up to 4S (four in series) to achieve 48V/51.2V, and you can parallel up to four strings (4P) of those series sets to increase capacity up to 400Ah at 51.2V.

Expansion Limits and Practical Examples

You’ll find the product supports up to 16 modules connected (4S4P) for a 51.2V 400Ah system, giving you up to 20.48 kWh of stored energy. If you instead use a single module, you’re at 12.8V and 100Ah (1.28 kWh nominal), which is useful for small DC loads or as a modular building block.

Configuration and Wiring Guidance

You’ll need to wire each battery securely and in the correct order to build a safe 48V pack. Use appropriately rated cables, torque specifications for terminals, and fuses or breakers near the battery bank for overcurrent protection.

Series Wiring for 48V

You’ll wire positive to negative across each battery until you have four in series: Battery 1 + to – of Battery 2, Battery 2 + to – of Battery 3, and so on until you get the overall positive and negative terminals for the 48V system. Ensure equal charge states and similar age/voltage before making series connections.

Paralleling Strings for Larger Capacity

You’ll parallel complete series strings (e.g., multiple 48V strings in parallel) only if the modules have the exact same nominal voltage and capacity and were purchased and commissioned closely together (recommended within a six-month window). Paralleling mismatched batteries can lead to imbalance and premature wear.

Calculation Examples (Voltage, Capacity, and Energy)

You’ll probably want to understand the math behind capacities so you can size your inverter, charger, and loads correctly. Below are some practical calculations you’ll use often.

You’ll use those numbers to estimate runtimes: divide Wh by the steady load in watts and factor in inverter efficiency (typically 85–95%) to get practical hours of operation.

Installation Best Practices

You’ll want to install batteries on a secure, non-conductive surface and maintain easy access for service and inspection. Keep wiring runs short and heavy gauge to minimize voltage drop and heat, and mount the batteries in a place that keeps them within the recommended operating temperatures.

Ventilation, Mounting, and Physical Considerations

You’ll keep the batteries in a sheltered area where they won’t be exposed to running water or extreme temperature swings beyond their operating ranges. While they are IP66 rated, avoid prolonged immersion and protect terminals from accidental shorting.

Fusing and Conductor Sizing

You’ll protect each positive conductor with a fuse or breaker located close to the battery bank. Choose fuse ratings that protect the cable and downstream equipment — a qualified installer or product manual should guide the exact size, but ensure the fuse prevents conductors or devices from being exposed to currents above their rated capacity.

Pros and Cons

You’ll find a clear set of advantages and a few limitations to weigh before buying. Here’s a balanced list to help you decide if the pack fits your needs.

Pros:

• You get high cycle life and long calendar life for lower total cost of ownership vs lead-acid.
• You’ll have robust BMS protection including low-temp cut-off for safe operation.
• You can scale the system in series and parallel to suit many applications.
• The compact Group 24 footprint makes installation flexible in boats, RVs, and carts.
• The IP66 rating helps resist water spray and dust in outdoor conditions.

Cons:

• You’ll likely need to purchase chargers, balancers, and wiring separately if not included.
• You must follow the recommendation to charge every 3–5 months in storage to avoid degradation.
• You’ll need to ensure consistent matching if you expand the bank with additional modules — only batteries with the same exact specs and similar age are recommended to parallel or series together.
• The upfront cost will be higher than lead-acid alternatives, although lifecycle economics typically favor LiFePO4.

Maintenance and Storage Tips

You’ll keep your batteries healthy with routine practices that are easy to follow and will extend service life. Charge periodically during storage, avoid extreme temperatures, and keep batteries clean and dry.

Storage Charging and Periodic Checks

You’ll charge stored batteries every 3–5 months as suggested to maintain cell balance and avoid deep self-discharge. Record voltage and state of charge occasionally and top them up if needed.

Cleaning and Terminal Care

You’ll inspect terminals for corrosion or loose connections and tighten to proper torque specs. Clean contacts with a neutral, non-conductive cleaner; avoid abrasive materials that could damage terminals or coatings.

Troubleshooting Common Issues

You’ll likely encounter only a few common scenarios where the BMS intervenes or the pack requires balancing; here’s how to respond to typical symptoms.

• Low-voltage shutoff: You’ll recharge the pack; if the BMS repeatedly cuts off, check for parasitic loads or a charging issue.
• Charging blocked below 0°C: You’ll warm the battery to above freezing before attempting to charge to avoid the low-temp cut-off.
• Imbalanced voltages after paralleled setup: You’ll use a battery balancer or individually charge modules to equal voltages before connecting in series.

If problems persist, contact the seller or a professional technician rather than attempting invasive cell-level repairs.

Comparing LiFePO4 to Lead-Acid and Other Li Chemistries

You’ll notice clear differences between LiFePO4 and older battery types. LiFePO4 offers more cycles, deeper usable depth of discharge, and better thermal stability compared to flooded, AGM, or gel lead-acid alternatives.

Practical Differences You’ll Experience

You’ll use more of the battery’s capacity without harming longevity (many users regularly use 80–100% DoD), and you’ll replace batteries less often. LiFePO4 is also more tolerant of high discharge rates and extreme charging cycles common with inverters and motors.

Who Should Buy This Pack?

You’ll find this battery set ideal if you need a compact, high-cycle, high-current 48V system for golf carts, boats, RVs, or off-grid solar that demands scalability. If you want the lowest ongoing maintenance and long service life, this is a strong choice.

Situations Where It Shines

You’ll be happiest with it for trolling motors, 48V electric golf carts, small to mid-sized RV systems, off-grid cabin power, and marine use where weight and cycle life matter. It’s also a good modular building block if you plan to expand capacity over time.

Situations to Consider Alternatives

You’ll reconsider if you need dramatically higher instantaneous currents than 200A surge, or if you need an integrated system with included chargers, cabling, and managed warranty service from a local provider. Also, if budget constraints are extreme and lifecycle cost is less important, lead-acid may have a lower upfront cost.

Final Thoughts and Recommendation

You’ll be investing in a flexible, safe, and long-lasting battery system when you choose the 48V 100Ah LiFePO4 Lithium Battery,8000+ Deep Cycle Golf Cart Battery 48V, 100A BMS 5120W, 4 Pack 12V 100Ah Group 24 in Series to 48V 100Ah Lithium Batteries for RV,Off-Grid Solar Home. It’s especially strong where long cycle life, scalability, and reliable high-current performance matter most.

If you’re planning to use it for a golf cart, RV conversion, or a small off-grid solar system, you’ll want to pair it with an appropriate 14.6V LiFePO4 charger, proper fusing, and a professional-quality installation to get the best performance and trouble-free years of service.

Disclosure: As an Amazon Associate, I earn from qualifying purchases.